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<?php
namespace AmpProject\Optimizer;
use ArrayIterator;
use Countable;
use IteratorAggregate;
/**
* Collection of error objects to pass around the transformation engine.
*
* @package ampproject/optimizer
*/
final class ErrorCollection implements Countable, IteratorAggregate
{
/**
* Internal storage for the errors that were added.
*
* @var Error[]
*/
private $errors = [];
/**
* Add an error to the error collection.
*
* @param Error $error Error to add.
* @return void
*/
public function add(Error $error)
{
$this->errors[] = $error;
}
/**
* Check whether the error collection contains an error for the given code.
*
* @param string $code Code of the error.
* @return bool Whether the error collection contains an error with the given code.
*/
public function has($code)
{
foreach ($this->errors as $error) {
if ($error->getCode() === $code) {
return true;
}
}
return false;
}
/**
* Get the iterator for iterating over the collection.
*
* @return ArrayIterator Iterator for the contained errors.
*/
public function getIterator()
{
return new ArrayIterator($this->errors);
}
/**
* Count how many errors are contained within the error collection.
*
* @return int Number of contained errors.
*/
public function count()
{
return count($this->errors);
}
}
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